ETENWOLF CL3 Camping Lantern Thermal Rise Test Report (Discharge & Charge, 2-Sample)

Document Overview

Key Findings The ETENWOLF CL3 Camping Lantern completed a full thermal stability test across all lighting modes and charge/discharge states, with the highest recorded component temperature of 90.2 °C (white LED top surface, sample 10#) and a maximum temperature rise of 59.4 K — all…

Document type

Certification Report

Prepared by

Ryan Cooper

Published

July 21, 2026

Last reviewed

July 29, 2026

Topics

Environmental Testing

Key Findings

The ETENWOLF CL3 Camping Lantern completed a full thermal stability test across all lighting modes and charge/discharge states, with the highest recorded component temperature of 90.2 °C (white LED top surface, sample 10#) and a maximum temperature rise of 59.4 K — all data collected for engineering improvement purposes; the report is classified For Reference Only.

• Product: CL3 Camping Lantern (CL3-露营灯)
• Report No.: 20260422-001
• Test Date: 2026-04-22
• Samples: 2 units — CL3-露营灯-10# and CL3-露营灯-11#
• Test Type: Reliability Test (thermal rise / 温升)
• Standard: Internal standard
• Peak temperature observed: 90.2 °C (white LED top, sample 10#)
• Peak temperature rise: 59.4 K (white LED top, sample 10#)
• Ambient temperature during test: 30.8 °C
• Verdict: For Reference Only — data used to guide product durability improvements

Test Overview

Test Equipment & Setup

Test Procedure

1. Pre-test preparation: Place samples in an indoor environment with no forced airflow. Record the baseline ambient temperature (实验室环境).
2. Instrument attachment: Attach Type-K thermocouple probes to all designated measurement points: L1, L2, L5, U7, U1, U2, white LED top surface (白灯上), and white LED bottom surface (白灯下).
3. Power-on and mode activation: Apply rated voltage and activate all lighting modes (side white light and bottom white light). Start continuous data acquisition.
4. Thermal stabilisation monitoring: Continue operation until all monitored points reach thermal equilibrium (temperatures cease rising).
5. Data recording: Record the maximum temperature (°C) at each measurement point and the simultaneous ambient temperature.
6. Temperature rise calculation: Calculate temperature rise (K) = measured point temperature − ambient temperature for each point and each sample.
7. Charge thermal rise: Repeat monitoring during the charging state; verify charge thermal rise is normal (充电温升正常).
8. Post-test inspection: Inspect samples for any signs of insulation degradation, discolouration, leakage, deformation, or abnormal odour.
9. Data analysis: Analyse temperature rise data to identify improvement opportunities for product durability; results documented as For Reference Only.

Acceptance criteria: All temperature rises must remain within safe limits under continuous rated-voltage operation. No thermal runaway, short circuit, fire, or contact failure is permitted.

Test Data & Results

The table below presents all recorded maximum temperatures and calculated temperature rises for both samples across all eight measurement points. Ambient temperature was 30.8 °C for both samples.

Observations:

• The white LED top surface (白灯上) recorded the highest temperatures in both samples: 90.2 °C (10#) and 72.2 °C (11#), with temperature rises of 59.4 K and 41.4 K respectively. The 17 °C inter-sample difference at this point warrants investigation into thermal interface consistency.
• U7 was the hottest non-LED component in both samples (63.4 °C / 32.6 K for 10#; 58.5 °C / 27.7 K for 11#).
• U2 and L2 showed closely matched temperatures in both samples, suggesting a shared thermal path.
• The white LED bottom surface (白灯下) showed divergent behaviour: 43.9 °C (13.1 K rise) for 10# versus 55.2 °C (24.4 K rise) for 11#, indicating possible variation in heat sink contact or airflow orientation.
• Charge thermal rise was confirmed normal (充电温升正常) per the internal wiring diagram assessment.
• Full time-series acquisition data is available in the sibling sheets 放电温升采集数据 and 充电温升采集数据.
• Test result classification: For Reference Only — data used to improve product thermal design and durability.

Conclusion

Document Information

Frequently Asked Questions

What does the thermal rise test measure on the ETENWOLF CL3 Camping Lantern?

The thermal rise test measures the temperature increase (in Kelvin) at critical internal points — including LED surfaces (白灯上 / 白灯下), circuit nodes (L1, L2, L5), and IC components (U7, U1, U2) — above the ambient temperature when the lantern operates continuously at rated voltage until thermal equilibrium is reached. This verifies that insulation materials and contacts remain safe under prolonged high-temperature conditions.

What was the highest temperature recorded during the CL3 thermal test?

The highest temperature recorded was 90.2 °C at the white LED top surface (白灯上) of sample CL3-露营灯-10#, corresponding to a temperature rise of 59.4 K above the ambient temperature of 30.8 °C. Sample 11# reached 72.2 °C at the same point, a rise of 41.4 K.

Why is the CL3 thermal test result classified as “For Reference Only” rather than Pass or Fail?

The test was conducted under the internal standard as an engineering evaluation, not a compliance certification. The collected thermal data is used to identify design improvement opportunities — particularly for heat dissipation at the LED top surface and component U7 — to enhance product durability and long-term reliability. No formal pass/fail threshold was applied in this test run.

Where can I find the full time-series temperature data for the CL3 discharge and charge thermal tests?

The complete time-series acquisition data is available in two companion sheets within the same Excel workbook: Discharge Thermal Rise Data (summary on this page) and Charge Thermal Rise Data. These sheets log continuous temperature readings at every monitored point throughout the test duration.

Related Products

Explore other test reports and data sheets from the same CL3 Camping Lantern test workbook:

• CL3 Camping Lantern — Discharge Thermal Rise Acquisition Data (summary on this page)
• CL3 Camping Lantern — Charge Thermal Rise Acquisition Data

Other lighting products from ETENWOLF:

• ETENWOLF Lighting Gear Product Range

Further Reading & Standards

Use the following ETENWOLF test reports, product information and measurement references to interpret this report in context.

Related ETENWOLF Documents

• ETENWOLF CL3 Camping Lantern IPX5 Waterproof Test Report — Fail (2026-01-21)
• ETENWOLF CL3 Camping Lantern Illuminance Performance Test Report
• ETENWOLF CL3 Camping Lantern Operating Temperature Performance Test Report
• ETENWOLF CL3 Camping Lantern Illuminance Test Report (6-Mode, 1 m Distance)

Product Information

• ETENWOLF CL3 product information

Measurement and Standards References

• IEC — International Electrotechnical Commission
• NIST — SI Units: Temperature